拍品 124
124
A Hamilton Model 21 Two-Day Marine Chronometer Movement and Bowl, the matt silvered dial signed Hamilton Lancaster P.A., U.S.A. and numbered (N) 4060 1941, Arabic hour numerals, subsidiary seconds andup-and-down dials, black hands, Earnshaw escapement, uncut balance with start/stop yoke assembly above the balance rim, Hamilton detent with jewelled locking stone, brass bowl and bezel, dial dia -- 5½in. (10.4cm.)

細節
A Hamilton Model 21 Two-Day Marine Chronometer Movement and Bowl, the matt silvered dial signed Hamilton Lancaster P.A., U.S.A. and numbered (N) 4060 1941, Arabic hour numerals, subsidiary seconds andup-and-down dials, black hands, Earnshaw escapement, uncut balance with start/stop yoke assembly above the balance rim, Hamilton detent with jewelled locking stone, brass bowl and bezel, dial dia -- 5½in. (10.4cm.)

拍品專文

The balance start/stop assembly is locked and unlocked using an allan key through the bottom of the bowl.